Seattle / Tacoma (SEA) to Oslo (OSL) cheap flight deal from $439 USD in economy class

SKScandinavian Airlines

Round Trip•Economy

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

OSL

Oslo Airport, Gardermoen

Oslo, Norway

$755 USD

-42%$439 USD

Verified Sep 20, 2025 at 4:48 AM

October 2025

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29$800 30$594 1$758 2$674 3$776 4$800 5$611 6$534 7$534 8$561 9$689 10$726 11$592 12$503 13$767 14$484 15$491 16$534 17$541 18$575 19$541 20$514 21$514 22$514 23$684 24$598 25$599 26$639 27$864 28$519 29$549 30$568 31$639 1 2

Extremely Rare Availability

1% of dates checked are available within 10% of the lowest price

Monday, October 13th, 2025

10 round-trip options

Returning

Sat, Oct 18, 2025•5 Day Trip

$829 USD

Google Flights

Returning

Sun, Oct 19, 2025•6 Day Trip

$817 USD

Google Flights

Returning

Mon, Oct 20, 2025•7 Day Trip

$993 USD

Google Flights

Returning

Tue, Oct 21, 2025•8 Day Trip

$779 USD

Google Flights

Returning

Wed, Oct 22, 2025•9 Day Trip

$767 USD

Google Flights

Returning

Thu, Oct 23, 2025•10 Day Trip

$808 USD

Google Flights

Returning

Fri, Oct 24, 2025•11 Day Trip

$817 USD

Google Flights

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Sat, Oct 25, 2025•12 Day Trip

$1,010 USD

Google Flights

Returning

Sun, Oct 26, 2025•13 Day Trip

$1,035 USD

Google Flights

Returning

Mon, Oct 27, 2025•14 Day Trip

$870 USD

Google Flights